Boat-propeller.



No. 812,475. PATENTED FEB-13, 1906. G'. E. BARBER. BOAT PROPELLER.

APPLICATION FILED APBHI, 1906.

2 HHEETS-BHBET 1.

H'ITJVESSBS' I QEMNWWE .No. 812,475. PATENTED 'FEB. 13,1906.

G. E. BARBER. BOAT PROPELLER.

APPLICATION FILED APR. 1, 1905.

2 sums-sum z.

INT/"EJVTOR plays -UNITED STATES PATENT OFFICE.

CHARLES E. BARBER, OF SYRACUSE, NEW YORK. BOAT-PHOPELLER.

Specification of Letters Patent.

Application filed April 1,1905. Serial No. 258,216.

To all whom it may concern:

' Be it known that I, CHARLES E. BARBER,

of Syracuse, in the county of Ononda a, in

persons familiar with this class of boats that in order to drive the same rearward it requires either a reversal of the engine or employment of certain connections between the engineshaft and propeller shaft operative for imparting a backward rotation to the latter.

The main object of the present invention is to provide a propeller of the aforesaid type which shall permit of quick and convenient regulation to effect either a forward or rearward drive of the boat, thereby obviating the necessity of reversing the rotation of the propeller-shaft.

Another object of the invention is to produce a propeller which shall be simple, strong, and durable in construction, eflicient in its operation, and at the same time easily controlled.

To that end the invention consists in the novel arrangement and combination of the component parts of the propeller, as hereinafter fully described, and set forth in the claims.

In the accompanying drawings, Figure 1 is a planview of a oat-propeller embodying my invention and showin the parts in position for driving forward. ig. 2 is a side view of the same in condition for driving a boat rearward. Fig. 3 is an enlarged rear view of the propeller-wheel minus the removable section of its hollow hub and showing the devices for axially turning the blades to set the same in either pro ellin or reversin positions. Fig. 4 is an en arge longitudina section of said hub and showing the connections between the longitudinally-shifting actuating-sleeve and the devices which turn the blades. Fig. 5 is a transverse section taken on the dotted line X X in Fig. 4. Fi 6 is an enlarged erspective view ofthe fimgitudinally-sli 'ng studded block which engages the slotted piv-' oted portions of the blades, whereby the lat- .ter are axially turned. Fig. 7 1s an enlarged s1de view of the inner end portion of one of the blades, and Fig. 8 is an end view of said blade and showing the slotted collar formed thereon.

Referring to the said d1 awin s, A denotes the propeller-shaft which is to e connected to the shaft of the engine or motor by any suitable or well-known means which shall sustain the former against endwise movement and is designed to be rotated in only one direction, WhlOll connection is not illustrated, as it does not pertaln to the invention. It isunderstood that this shaft A is to extend lengthwise the boat and supported in the usual manner.

B denotes the propeller-Wheel, which comprises a hollow spherical hub a and a set of radially-disposed blades 1) b b, pivotally secured to said hub, as will be hereinafter de- Patented Feb. 13, 1906.

scribed. The said hub 11 is formed with a tubular portion 0, which embraces a rearwardly-tapering portion (1 of the shaft A and is permanently fastened thereto, by means of a key e, as clearly shown in Figs. 4 and 5 of the drawings. The hub is transpreferably versely divided to form two sections a a the annular openings '1'. H, at the line of division and formed with annular exterior bearingsurfaces j j j, surrounding the opening, which surfaces are provided with-rabbets lc k k, as Shown in Figs .3 and 4 of the drawings. Each ofthe aforesaid blades 1) is formed with a short stem 1 at its inner end, by which it is pivoted in the opening 2' and formed with a shoulder m, abutting against the bearing-surface y' and seated in the rabbet k. Each of the said stems l is formed with a. collar n,preferably elongated transversely at one side and rovided with a transverse slot 0, these colars abutting against similar bearing-surfaces p p p, formed on the interior of the hub, and serve to arrangement and construction the blades can hold the blades in the hub. By this and slots the blades are turned axially when the said block is shifted back and forth on the shaft, thereby adjusting the blades to either propelling or reversing position. The said block is actuated by means of longitudinallymovable rods 0" c c, which slide in guides d d d, formed in the tubular portion 0 of the hub B. y The rear ends of the rods are screwthreaded and pass through the block and are provided with nuts e c e, which r' idly s'ecure the vblock thereto, said blo ci being shouldered on the rods, as indicated at f. The forward ends of the said rods are also screw-threaded, and thereby secured to a collar D, which is mounted longitudinally movable on the shaft A and adapted to abut against the end of the tubular portion of thehub when shifted rearward to turn the blades to (propelling positions, as shown in Figs. 1

an 4' of the drawings.

A re resents a lon itudinallymovable sleeve w 'ch embraces t e shaft A and serves to shift the collar back and forth on the shaft, and thereby actuate the aforesaid block C. The collar is preferably secured to the sleeve by screwthreading the parts, as shown in Fig. 4 of the drawings.

, It will be observed that by loosening the nuts e e e the rods 0' c a can be turned so as to adjust the block C in relation to the collar D, and thereby regulate the turning of the blades, and thus any desired s eed of a boat may be attained, either forwar or backward.

B is an upright hand-lever which may be arranged in any suitable and convenient manner to be operated by the person in char e of the engine and which is employed for s 'fting the sleeve A. I prefer, however, to bifurcate the lower portion of said lever to accommodate the shaftA and pivot the same to a suitable bracket C, fastened to the engine or other support, as indicated at D.

aid leveris connected to the sleevebymeans of links or bars 9 g and a collar h, rigidly embracing the inner end of the sleeve, as shown in Figs. 1 and 2 of the drawings;

What I claim is- 1. In a boat-pro eller, the combination of a rotary shaft suitably sustained against endwZ-se movement, a propeller-wheel comprising a hollow hub mounted on said shaft and a plurality of radially-disposed blades pivotally and detachably secured to said hub, a

block sliding longitudinally on the shaft within the hub for turning the blades to either propelling or reversing positions, a longitudinally-shiftable .sleeve embracingl the shaft, means adjustably connecting t e block to said sleeve and transmitting motion from the latter to said block, and means for shifting said sleeve as set forth.

2. In a boat-propeller, the combination of i a rotary shaft suita ly sustained a ainst endwise movement, a ropeller-whee com rising a transverselyivided hollow hub aving the shaft extending beyond the same and provided with radial openings at the line of adjustable means for transmitting motion.

from the sleeve tothe block, and means for shifting the sleeve as set forth.

3. In a boat-propeller, the combination of a rotary longitudinally-disposed shaft suitably sustained against endwise movement, a propeller-wheel com risin a hollow hubmounted on the shaft an divided transversely to form two sections and provided with a plurality of radial openings at the line of division, and blades pivotally and detachably secured in said openings, the inner hubsection being permanently fastened to the shaft and provided ,with a series of longitudinal guides, and the outer hub-section secured removably on the shaft, a block sliding longitudinally on the shaft within the hub and provided with means for turning the blades axially to either ro elling or reversing positions, a lon itu a ly-shiftable sleeve embracing the s aft independent of the hub, and rods extending through the aforesaid guides and adjustably connecting the block to the sleeve and transmitting motion from the lat .ter to the block, andmeans for shifting said sleeve as set forth.

4. In a boat-propeller, the combination of a longitudinally disposed rotary shaft suitabl sustained against endwise movement an havin propeller-wieel comprising ahollow hub provided with a plurality of radial openings and divided transversely on a line dlametrically IIO its rear end screw-threaded, a-f

through the openings, the inner section being I permanently secured to the shaft and the outer secured removabl thereon and having the threaded portion 0 the shaft projecting therefrom, a nut on said shaft and sustaining the outer section in its osition, and blades formed with stems by w 'ch the are pivotally and detachably secured in t e aforesaid 13o openings and provided with bearing-surfaces formed on the exterior and interior of the hub, a longitudinally-sliding block on the shaft within the hub and engaging the stems of the blades, means for adjustm the block to regulate the movement of the. lades, and means for actuating said block as set forth.

5. In a boat-propeller, the combination of a rotary shaft sustained against endwise movement, a propeller-wheel comprising a hollow hub divided transversely to form innet and outer sections, the'inner section being formed with a tubular portion by which it is permanently secured to the shaft, and the outer section being removably secured thereto, longitudinal guides in'said tubular portion, a triangular block provided with a central aperture by which it slides. longitudis portion of the hub, rods passing through the aforesaid guides and having their rear ends screw-threaded and extending through the corner apertures of the block, nuts on said rear ends of the rods, the o posite ends of the rods being screw-threade and fastened to the said collar, and means for shifting sald sleeve as set forth. 4

CHARLES E. BARBER.

Witnesses:

J. J. LAASS, L. H. FULMER. 

